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--- sysdeps/freebsd/suid_open.c.orig 2008-09-29 17:22:12.000000000 -0400
+++ sysdeps/freebsd/suid_open.c 2008-09-29 17:23:35.000000000 -0400
@@ -0,0 +1,91 @@
+/* Copyright (C) 1998 Joshua Sled
+ This file is part of LibGTop 1.0.
+
+ Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
+
+ LibGTop is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ LibGTop is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LibGTop; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+#include <config.h>
+#include <glibtop.h>
+#include <glibtop/error.h>
+#include <glibtop/cpu.h>
+#include <glibtop/open.h>
+#include <glibtop/init_hooks.h>
+
+
+/* !!! THIS FUNCTION RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
+
+void
+glibtop_init_p (glibtop *server, const unsigned long features,
+ const unsigned flags)
+{
+ const _glibtop_init_func_t *init_fkt;
+
+ if (server == NULL)
+ glibtop_error_r (NULL, "glibtop_init_p (server == NULL)");
+
+ /* Do the initialization, but only if not already initialized. */
+
+ if ((server->flags & _GLIBTOP_INIT_STATE_SYSDEPS) == 0) {
+ glibtop_open_p (server, "glibtop", features, flags);
+
+ for (init_fkt = _glibtop_init_hook_p; *init_fkt; init_fkt++)
+ (*init_fkt) (server);
+
+ server->flags |= _GLIBTOP_INIT_STATE_SYSDEPS;
+ }
+}
+
+void
+glibtop_open_p (glibtop *server, const char *program_name,
+ const unsigned long features,
+ const unsigned flags)
+{
+#ifdef DEBUG
+ fprintf (stderr, "DEBUG (%d): glibtop_open_p ()\n", getpid ());
+#endif
+
+ /* !!! WE ARE ROOT HERE - CHANGE WITH CAUTION !!! */
+ server->machine.uid = getuid ();
+ server->machine.euid = geteuid ();
+ server->machine.gid = getgid ();
+ server->machine.egid = getegid ();
+ /* Setup machine-specific data */
+ server->machine.kd = kvm_open (NULL, NULL, NULL, O_RDONLY, "kvm_open");
+
+ if (server->machine.kd == NULL)
+ glibtop_error_io_r (server, "kvm_open");
+
+ /* Drop priviledges. */
+
+ if (setreuid (server->machine.euid, server->machine.uid))
+ _exit (1);
+
+ if (setregid (server->machine.egid, server->machine.gid))
+ _exit (1);
+
+ /* !!! END OF SUID ROOT PART !!! */
+
+ /* Our effective uid is now those of the user invoking the server,
+ * so we do no longer have any priviledges. */
+
+ /* NOTE: On FreeBSD, we do not need to be suid root, we just need to
+ * be sgid kmem.
+ *
+ * The server will only use setegid() to get back it's priviledges,
+ * so it will fail if it is suid root and not sgid kmem. */
+}
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